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    std::uses_allocator

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    C++
     
    Utilities-Bibliothek
     
    Dynamische Speicherverwaltung
    Low-Level-Speicherverwaltung
    Zuweiser
    Original:
    Allocators
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    allocator
    allocator_traits(C++11)
    allocator_arg_t(C++11)
    allocator_arg(C++11)
    uses_allocator(C++11)
    scoped_allocator_adaptor(C++11)
    Initialisierter Speicher
    Original:
    Uninitialized storage
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    uninitialized_copy
    uninitialized_copy_n(C++11)
    uninitialized_fill
    uninitialized_fill_n
    raw_storage_iterator
    get_temporary_buffer
    return_temporary_buffer
    Intelligente Zeiger
    Original:
    Smart pointers
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    unique_ptr(C++11)
    shared_ptr(C++11)
    weak_ptr(C++11)
    auto_ptr(veraltet)
    owner_less(C++11)
    enable_shared_from_this(C++11)
    bad_weak_ptr(C++11)
    default_delete(C++11)
    Garbage Collection Unterstützung
    Original:
    Garbage collection support
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    declare_reachable(C++11)
    undeclare_reachable(C++11)
    declare_no_pointers(C++11)
    undeclare_no_pointers(C++11)
    pointer_safety(C++11)
    get_pointer_safety(C++11)
    Verschiedenes
    Original:
    Miscellaneous
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    pointer_traits(C++11)
    addressof(C++11)
    align(C++11)
    C-Bibliothek
    Original:
    C Library
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    definiert in Header <memory>
    template<class T, class Alloc >
    struct uses_allocator
    		(seit C++11)
    Wenn T ein Mitglied typedef allocator_type die Cabrio von Alloc ist, hat, stellt das Mitglied konstanten value gleich true. Ansonsten value ist false .
    Original:
    If T has a member typedef allocator_type which is convertible from Alloc, provides the member constant value equal to true. Otherwise value is false.
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    Inhaltsverzeichnis

    Inherited from std::integral_constant

    Member constants

    value
    [statisch]
    true wenn T uses allocator Alloc, false anders
    Original:
    true if T uses allocator Alloc, false otherwise
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    (public static Mitglied konstanten)

    Member functions

    operator bool
    wandelt das Objekt bool, gibt value
    Original:
    converts the object to bool, returns value
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    (öffentliche Elementfunktion)

    Member types

    Type
    Original:
    Type
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    		 Definition
    value_typebool
    typestd::integral_constant<bool, value>

    [Bearbeiten]Spezialisierungen

    Benutzerdefinierte Spezialisierungen des Typs trait std::uses_allocator sind für Typen, die nicht das Mitglied typedef allocator_type die aber eine der beiden folgenden Anforderungen erlaubt:
    Original:
    Custom specializations of the type trait std::uses_allocator are allowed for types that do not have the member typedef allocator_type but satisfy one of the following two requirements:
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    1)
    T hat einen Konstruktor, std::allocator_arg_t nimmt als erstes Argument und Alloc als zweites Argument .
    Original:
    T has a constructor which takes std::allocator_arg_t as the first argument, and Alloc as the second argument.
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    2)
    T hat einen Konstruktor, Alloc erfolgt als letztes Argument .
    Original:
    T has a constructor which takes Alloc as the last argument.
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    Die folgenden Spezialisierungen sind bereits von der Standard-Bibliothek zur Verfügung:
    Original:
    The following specializations are already provided by the standard library:
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    (C++11)
    spezialisiert die std::uses_allocator Typ Merkmal
    Original:
    specializes the std::uses_allocator type trait
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    (class Template-Spezialisierung)[edit]
    (C++11)
    spezialisiert die std::uses_allocator Typ Merkmal
    Original:
    specializes the std::uses_allocator type trait
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    (Funktions-Template)[edit]
    (C++11)
    spezialisiert die std::uses_allocator Typ Merkmal
    Original:
    specializes the std::uses_allocator type trait
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    (Funktions-Template)[edit]
    (C++11)
    spezialisiert die std::uses_allocator Typ Merkmal
    Original:
    specializes the std::uses_allocator type trait
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    (Funktions-Template)[edit]
    (C++11)
    		 spezialisiert das std::uses_allocator Typenmerkmal (type trait)
    (class Template-Spezialisierung)[edit]
    (C++11)
    spezialisiert die std::uses_allocator Typ Merkmal
    Original:
    specializes the std::uses_allocator type trait
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    (class Template-Spezialisierung)[edit]
    (C++11)
    spezialisiert die std::uses_allocator Typ Merkmal
    Original:
    specializes the std::uses_allocator type trait
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    (class Template-Spezialisierung)[edit]

    [Bearbeiten]Notes

    Diese Art Merkmal wird durch std::scoped_allocator_adaptor eingesetzt und kann durch individuelle Zuordnern verwendet werden, um zu bestimmen, ob das Objekt aufgebaut sich geeignet ist, unter Verwendung einer Zuweisungseinrichtung (zB ist ein Container), in welchem ​​Fall eine Zuweisungseinrichtung an den Konstruktor übergeben werden müssen .
    Original:
    This type trait is used by std::scoped_allocator_adaptor and may be used by custom allocators to determine whether the object being constructed is itself capable of using an allocator (e.g. is a container), in which case an allocator should be passed to its constructor.
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    [Bearbeiten]Siehe auch

    (C++11)
    		 eine Konstante, um Konstruktoren, die Allokatoren unterstützen, auswählen zu können
    (konstanten)[edit]
    (C++11)
    		 Type zur Auswahl der Konstruktorüberladungen mit Allokatorunterstützung
    (Klasse)[edit]
    (C++11)
    		 implementiert die Zuweisung über mehrere Ebenen für Container, die in mehrfachen Ebene unterteilt sind
    (Klassen-Template)[edit]
    Von „https://de.cppreference.com/mwiki/index.php?title=cpp/memory/uses_allocator&oldid=29457“
    close